Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Please,please help me If a,b,c are algebraic length of perpendiculars dropped from P(-1,-2,-3) to xy plane, yz plane and xz plane respectively. Then a-b+c equals

If a,b,c are algebraic length of perpendiculars dropped from P(-1,-2,-3) to xy plane, yz plane and xz plane respectively. Then a-b+c equals

  • Option 1)

    -1

  • Option 2)

    0

  • Option 3)

    1

  • Option 4)

    2

 

Answers (1)

best_answer

As we have learned

Co-ordinate of a point -

Consider a point P(a,b,c) in space and drop a perpendicular from it on XY plane the algebraic length of this perpendicular is called z cordinate. Now from this point draw perpendiculars to X and Y axes, the algebraic length of these perpendiculars is known as x and y co-ordinate respectively.

- wherein

 

 a will be z-coordinate = -3

 b will be x-coordinate = -1

 c will be y-coordinate = 2

\therefore a-b+c = -3-(-1)+2=0

\therefore Option (B)

 


Option 1)

-1

Option 2)

0

Option 3)

1

Option 4)

2

Posted by

Himanshu

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2026: IIT Roorkee’s ECE emerges as top choice after CSE; closing rank rises
anam-khan

JEE Main 2026 application correction begins on jeemain.nta.nic.in; edit details by December 2
anam-khan

JEE Mains 2026 LIVE: NTA to conduct session 1 from January 21 to 30; exam pattern, syllabus

Latest Question